Abstract: Hydrogen peroxide is prepared by the homogeneously catalyzed reaction of hydrogen and oxygen in an inert organic solvent, by employing a palladium complex, selected from palladium(O) complexes of dibenzylidene acetone, as the catalyst.

Abstract: A cyclic method for recovering alkali values from subterranean trona deposits. The ore is contacted via solution mining with an aqueous mining solvent containing sodium hydroxide, the resulting Na.sub.2 CO.sub.3 -containing solution is withdrawn and carbonated, and sodium sesquicarbonate and/or sodium bicarbonate is crystallized and separated from the solution. The crystallized solids are calcined in a direct coal-fired calciner, and the resultant anhydrous soda ash is recrystallized in water to form sodium carbonate monohydrate or anhydrous sodium carbonate, which is recovered as a dense alkali product. Aqueous mining solvent is regenerated by causticization of one or more of the various liquor streams, and the recovery cycle is repeated.

Abstract: A method for enhancing the activity of a trilithium phosphate catalyst, useful for isomerizing alkylene oxides to the corresponding alcohols, in which dry catalyst is contacted with an aqueous solution containing a mineral acid such as phosphoric acid, and the acid-treated catalyst is thereafter separated from the aqueous solution, preferably water-washed, and then dried. The amount of acid in the aqueous solution is adjusted so that the pH of the solution in contact with the catalyst is maintained at a value of between 9 to 11.

Abstract: A resin modified asbestos diaphragm is prepared by diluting a heat curable polyvinylidene fluoride homopolymer resin latex containing no more than about 5% resin solids with an aqueous solution containing about 4% to 5% sodium hydroxide. From about 6 to about 11 parts of asbestos fibers are then slowly added to this alkaline resin latex solution for each part of resin solids contained therein with agitation to produce a clear aqueous slurry of resin coated asbestos fibers. To this slurry is then added an aqueous solution of 10% to 15% sodium hydroxide to swell the asbestos fibers. The resulting slurry is deposited on a screen to form a diaphragm which is carefully dried and cured at elevated temperatures to complete the polymerization of the polyvinylidene fluoride resin and form a bonded resin coated asbestos fiber product that is dimensionally stable. Such resin modified asbestos diaphragms may be used in electrolytic cells for electrolyzing alkali metal halide solutions.

Abstract: Strontium nitrate is prepared by reacting celestite (strontium sulfate) with excess calcium nitrate in limited amounts of water, quickly extracting strontium nitrate from the reaction mixture by vigorous agitation with additional water, and recovering strontium nitrate by evaporation of the extract solution.

Abstract: Sodium carbonate peroxide stabilized against loss of its active oxygen content is prepared by incorporating into sodium carbonate peroxide an ethylene oxide-derivative stabilizing agent selected from the group consisting of polyethylene glycol, polyethoxy fatty acid tertiary amines, diamines and quaternary ammonium salts thereof, N,N-polyethoxy fatty acid amides and polyethoxy fatty acid esters and recovering the sodium carbonate peroxide as a dry, free-flowing solid.

Abstract: Improved process for preparing sodium carbonate from crude trona without carbon column scaling by evaporating a portion of water from a clarified sodium carbonate solution to crystallize sodium carbonate crystals therefrom, separating the sodium carbonate crystals from the crystallizer liquor, passing only the crystallizer liquor which contains organic impurities through a carbon column to reduce the organic impurity concentration therein, and evaporating a portion of water from the carbon treated crystallizer liquor to crystallize additional sodium carbonate crystals.

Abstract: This invention relates to a process for preparing nonionic glycidol-derived surfactants. Specifically C.sub.10 -C.sub.20 n-alkyl glyceryl ether alcohols containing from 1 to about 10 glyceryl units, are prepared by reacting crude glycidol and a C.sub.10 -C.sub.20 n-alkyl alcohol in the presence of a non-polar, non-reactive miscible solvent.

Abstract: A method for enhancing recovery of sodium carbonate from sodium carbonate solutions which contain sodium chloride. Anhydrous sodium carbonate is recovered in good yields from aqueous sodium carbonate solutions containing sodium chloride by evaporative crystallization at superatmospheric pressure and at a temperature of at least about 120.degree. C.

Abstract: A method for recovering alkali value from sodium bicarbonate-containing ore by utilizing an aqueous solvent containing ammonia. The aqueous ammonia solvent is contacted with the ore to solubilize the sodium bicarbonate-containing ore. The alkali values in the resulting solution are crystallized, preferably as sodium carbonate monohydrate or as sodium sesquicarbonate, which may be processed to recover soda ash. Aqueous ammonia solvent is preferably regenerated from the mother liquor remaining after recovery of the solids, the ammonia solvent then being employed in a cyclic method to recover additional alkali values from the ore.

Abstract: An apparatus and method for the controlled chlorination of a water supply in which an alkali metal salt of dichloroisocyanuric acid is dissolved to form a concentrated chlorine solution that is slowly released into the water supply. The apparatus contains an internal standpipe, open to the water supply at its bottom end and having water inlet apertures and solution metering apertures in its wall. The natural circulation of water in the standpipe through the solid dichloroisocyanurate charge contained in the apparatus results in chlorination of the water supply at a rate controlled by the size and number of solution metering apertures.

Abstract: A method for regenerating scale-coated activated carbon used to treat crude sodium carbonate solutions in which the scale-coated carbon is acid washed with an aqueous solution containing from 1 to 15% by weight hydrochloric acid and from 0.5 to 3% by weight ammonium bifluoride.

Abstract: A particulate peroxygen compound having improved storage stability against loss of its active oxygen, the peroxygen compound being coated with 0.1 to 3.0 weight percent of an ethylene oxide-derivative stabilizing material.

Abstract: Waste raw uncoated and/or coated (such as saran, nitrocellulose and vinyl) regenerated cellulose film is treated to recover its plasticizer and cellulose components for recycling in the manufacture of regenerated cellulose film. The platicizer is first recovered from comminuted waste film particles via extraction with water. The moist comminuted film particles are then converted to viscose, from which coating solids, if any, are removed. The viscose is thereafter employed in the manufacture of regenerated cellulose film.

Abstract: A protective vinyl transfer sheet material and a method for laminating such transfer sheet material to a vinyl substrate. The transfer sheet material consists of a film of plasticized vinyl resin releasably supported with measurable adhesion on one side of a continuous, flexible, non-fibrous cellulosic carrier, particularly regenerated cellulose sheet. In the method of the present invention, the vinyl film is bonded under pressure with heat to the vinyl substrate, after which the cellulosic carrier may be readily stripped from the laminate, leaving the firmly bonded vinyl film as a protective overcoating for the substrate.